1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Alik [6]
3 years ago
14

Science, Society, and Technology

Biology
1 answer:
Tems11 [23]3 years ago
3 0
The answer is c i think or the 3 one,why wouldnt you give more food to a developing community
You might be interested in
A disease kills half the populations of both seals and bears. If all other factors in the environment remain the same, how are t
Rasek [7]
They’ll both decrease over time
7 0
3 years ago
The continents began to drift apart by the end of the
Eduardwww [97]
Continental drift happened around the Jurassic period, 175 million years ago.

<span />
3 0
3 years ago
which statement describes what most likely occurs when I Compass is placed next to a simple circuit made from Battery, a light b
Arte-miy333 [17]
I believe the statement would be that, A magnetic field created by the electric current causes the compass needle to move. 
An electric current through a conductor creates a magnetic field,such that when a charged particle such as an electron, proton, or ion is in motion, magnetic lines of force rotate around the particle. Since current moving through the wire consists of electrons in motion, there is a magnetic field around the wire, which causes the compass needle to deflect. 
5 0
3 years ago
Which answer best defines what the Lotka-Volterra predator-prey model mathematically describes?-The competition among many preda
yanalaym [24]

Answer:

The simultaneous effect of a predator population on a prey population and a prey population on a predator population over time.

Explanation:  

The mathematical models of Lotka-Volterra equations explain the existing interaction between species in which prey and predator influence and affect each other. The model follows a few assumptions,    

  • The ecosystem is isolated and closed. There is no migration.
  • The whole individuals are reproductively equivalent.
  • In the absence of the predator, prey shows an exponential growth rate. The prey is in the ideal environment.  
  • When there is no prey, the predator population decreases exponentially because of the lack of food. The predator environment is ideal, but it is limited by prey density.  
  • The predation rate is proportional to the encounters rate, which also depends on density.  
  • The predators affect the prey populations, inducing its decrease proportionally to the number of prey and predators present.  
  • The prey population also influences the predator population proportionally to the number of encounters between the two species.  

In these equations, the variable D is the number of predators, and P the number of prey items.

The parameters are always constant:  

• r1: prey growth rate.  

• a1: predator hunting success.  

• r2: predator growth rate.  

• a2: the success of the predator in hunting and feeding.

In nature, many factors affect interactions, such as dense-dependent factors and dense-independent factors. Also, in reality, there are stochastic factors. Stochasticity refers to the variability in the system involving those factors that are affecting or influencing population growth. Stochasticity might be related to good years and bad years for population growth.

In real situations, the compliance of the whole assumption does not occur. The previously mentioned constants might vary, constantly changing the interaction between the predator and the prey. These parameters change in different degrees, resulting in varying circumstances for both species.

3 0
3 years ago
When working with radioactive materials you must use radiation detection instruments. Which of the following instruments require
vampirchik [111]

Geiger-Muller tube is instruments requires you test three times the background of the work area.

<u>Explanation</u>:

These detectors are gas filled detectors and hence requires time for responding to the value. This time is taken because during this period it collects the electric charges and features of the electric circuit. It also gets stabilized during this period. This device has thumb rule i.e one must wait or hold for at the least 3 times the time constant before getting the precise and accurate reading. The time constant order is 10 seconds for the ionization chamber but for the Geiger counter it can vary from seconds to greater than 20 seconds

6 0
3 years ago
Other questions:
  • What are the sequence of steps that includes the image on the retina
    7·1 answer
  • What is the function of an electromagnet in an electric doorbell?
    15·2 answers
  • Describe 3 ways in which the organs of the circulatory system and respiratory system are protected
    7·1 answer
  • The most important feature of sitelink extensions (including enhanced sitelinks) is:
    13·2 answers
  • How does water polarity affect the way water interacts with different substances?
    5·1 answer
  • Which class of macromolecules is not organized in repeating units of monomers? proteins lipids nucleic acids carbohydrates
    15·2 answers
  • What must predators be able to do?
    5·1 answer
  • Your son has not had the MMR vaccine (measles, mumps, rubella) because you are apprehensive about vaccines and their side effect
    7·1 answer
  • Scientists studied the evolution of horses. They concluded that horses evolved with the emergence of grasslands and an increase
    11·2 answers
  • Why are cockroaches considered parasites to human?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!